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??2???21????????? (?)21???,?,????????????????????????????,??,??

???????????????????,??????????2????????????????????18????,??(???????????)???????????????511.83?????????????????,????????????????4.51???????????????????????????????,?????26.2%?

???,?????2020??????????????,??????,????????????

2022???????,?????????(?????????)?????????????????????,???????????,???????,?????“?”?

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??????,??????????????????????????,?????????????????????????????“????,?10????????????????????,?????????????,???????????????????????????”

??????,??15???,????????????????,?21??????????????(???????????????????) ???:???